Key statistics: 9/11/2001 "by the numbers": Source NY MAGAZINE - online web reference

• Total number killed in attacks in New York: 2,753
• Number of firefighters and paramedics killed: 343
• Number of NYPD officers: 23
• Number of Port Authority police officers: 37
• Number of WTC companies in the towers that lost people: 128
• Number of employees who died in Tower One: 1,402
• Number of employees who died in Tower Two: 614
• Number of employees lost at Cantor Fitzgerald: 658
• Number of U.S. troops killed in Operation Enduring Freedom: 2,343
• Number of nations whose citizens were killed in attacks: 115
• Ratio of men to women who died: 3:1
• Age of the greatest number who died: between 35 and 39
• Bodies found "intact": 291
• Remains found: 21,906
• Number of families who got no remains: 1,717

http://nymag.com/news/articles/wtc/1year/numbers.htm

Days after 9/11 that the U.S. began bombing Afghanistan: 26